Annotation of loncom/interface/groupsort.pm, revision 1.17
1.1 harris41 1: # The LearningOnline Network with CAPA
1.4 harris41 2: # The LON-CAPA group sort handler
3: # Allows for sorting prior to import into RAT.
4: #
1.17 ! www 5: # $Id: groupsort.pm,v 1.16 2002/09/16 20:57:28 matthew Exp $
1.4 harris41 6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
1.1 harris41 20: #
1.4 harris41 21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
1.1 harris41 26: #
1.4 harris41 27: # http://www.lon-capa.org/
1.1 harris41 28: #
29: # YEAR=2001
1.4 harris41 30: # 8/7,8/8,10/14,10/15,12/10 Scott Harrison
1.6 harris41 31: # YEAR=2002
32: # 1/17 Scott Harrison
1.4 harris41 33: #
34: ###
1.1 harris41 35:
36: package Apache::groupsort;
37:
38: use strict;
39:
40: use Apache::Constants qw(:common);
41: use GDBM_File;
1.15 www 42: use Apache::loncommon;
1.1 harris41 43:
1.2 harris41 44: my %hash; # variable to tie to user specific database
45: my $iconpath; # variable to be accessible to multiple subroutines
1.17 ! www 46:
! 47: sub cleanup {
! 48: untie(%hash) if (tied(%hash));
! 49: }
1.2 harris41 50:
51: # ---------------------------------------------------------------- Main Handler
1.1 harris41 52: sub handler {
53: my $r = shift;
1.9 www 54:
55: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
56: ['acts','catalogmode','mode']);
1.2 harris41 57: # color scheme
58: my $fileclr = '#ffffe6';
59: my $titleclr = '#ddffff';
60:
1.1 harris41 61: $r->content_type('text/html');
62: $r->send_http_header;
63: return OK if $r->header_only;
1.2 harris41 64:
1.8 www 65: # finish_import looks different for graphical or "simple" RAT
66: my $finishimport='';
67: if ($ENV{'form.mode'} eq 'simple') {
68: $finishimport=(<<ENDSMP);
69: function finish_import() {
1.10 www 70: opener.document.forms.simpleedit.importdetail.value='';
71: for (var num=0; num<document.forms.groupsort.fnum.value; num++) {
72: opener.document.forms.simpleedit.importdetail.value+='&'+
73: escape(eval("document.forms.groupsort.title"+num+".value"))+'='+
74: escape(eval("document.forms.groupsort.filelink"+num+".value"));
75: }
76: opener.document.forms.simpleedit.submit();
77: self.close();
1.8 www 78: }
79: ENDSMP
80: } else {
81: $finishimport=(<<ENDADV);
82: function finish_import() {
83: var linkflag=false;
84: for (var num=0; num<document.forms.groupsort.fnum.value; num++) {
85: insertRowInLastRow();
86: placeResourceInLastRow(
87: eval("document.forms.groupsort.title"+num+".value"),
88: eval("document.forms.groupsort.filelink"+num+".value"),
89: linkflag
90: );
91: linkflag=true;
92: }
93: opener.editmode=0;
94: opener.notclear=0;
95: opener.linkmode=0;
96: opener.draw();
97: self.close();
98: }
99: ENDADV
100: }
101:
102: # output start of web page
103:
1.1 harris41 104: $r->print(<<END);
105: <html>
106: <head>
107: <title>The LearningOnline Network With CAPA Group Sorter</title>
108: <script language='javascript'>
109: function insertRowInLastRow() {
110: opener.insertrow(opener.maxrow);
111: opener.addobj(opener.maxrow,'e&2');
112: }
113: function placeResourceInLastRow (title,url,linkflag) {
1.2 harris41 114: opener.newresource(opener.maxrow,2,opener.escape(title),
115: opener.escape(url),'false','normal');
1.1 harris41 116: opener.save();
117: opener.mostrecent=opener.obj.length-1;
118: if (linkflag) {
119: opener.joinres(opener.linkmode,opener.mostrecent,0);
120: }
121: opener.linkmode=opener.mostrecent;
122: }
1.8 www 123: $finishimport
1.1 harris41 124: function selectchange(val) {
1.3 harris41 125: var newval=0+eval("document.forms.groupsort.alt"+val+".selectedIndex");
1.1 harris41 126: orderchange(val,newval);
127: }
128: function move(val,newval) {
129: orderchange(val,newval);
130: }
131: function orderchange(val,newval) {
132: document.forms.groupsort.oldval.value=val;
133: document.forms.groupsort.newval.value=newval;
134: document.forms.groupsort.submit();
135: }
136: </script>
137: </head>
138: END
1.15 www 139: $r->print(&Apache::loncommon::bodytag('Sort Imported Resources'));
1.2 harris41 140: # read pertinent machine configuration
1.1 harris41 141: my $domain = $r->dir_config('lonDefDomain');
1.2 harris41 142: $iconpath = $r->dir_config('lonIconsURL') . "/";
143:
144: my %shash; # sort order (key is resource location, value is sort order)
145: my %thash; # title (key is resource location, value is title)
1.9 www 146:
1.4 harris41 147: my $diropendb;
1.11 www 148: # ------------------------------ which file do we open? Easy if explictly given
1.4 harris41 149: if ($ENV{'form.catalogmode'} eq 'groupsearch') {
150: $diropendb =
151: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_searchcat.db";
152: }
153: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
154: $diropendb =
155: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db";
1.6 harris41 156: }
1.11 www 157: elsif ($ENV{'form.catalogmode'} eq 'groupsec') {
158: $diropendb =
159: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_groupsec.db";
160: }
161: # --------------------- not explicitly given, choose the one most recently used
1.6 harris41 162: else { # choose last accessed
1.11 www 163: my @dbfn;
164: my @dbst;
165:
166: $dbfn[0] =
1.6 harris41 167: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_searchcat.db";
1.11 www 168: $dbst[0]=-1;
169: if (-e $dbfn[0]) {
170: $dbst[0]=(stat($dbfn[0]))[9];
1.6 harris41 171: }
1.11 www 172: $dbfn[1] =
1.6 harris41 173: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db";
1.11 www 174: $dbst[1]=-1;
175: if (-e $dbfn[1]) {
176: $dbst[1]=(stat($dbfn[1]))[9];
1.6 harris41 177: }
1.11 www 178: $dbfn[2] =
179: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_groupsec.db";
180: $dbst[2]=-1;
181: if (-e $dbfn[2]) {
182: $dbst[2]=(stat($dbfn[2]))[9];
183: }
184: # Expand here for more modes
185: # ....
186:
187: # Okay, find most recent existing
188:
189: my $newest=0;
1.12 www 190: $diropendb='';
1.11 www 191: for (my $i=0; $i<=$#dbfn; $i++) {
192: if ($dbst[$i]>$newest) {
193: $newest=$dbst[$i];
194: $diropendb=$dbfn[$i];
195: }
1.6 harris41 196: }
1.11 www 197:
1.4 harris41 198: }
1.11 www 199: # ----------------------------- diropendb is now the filename of the db to open
1.13 albertel 200: if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) {
1.2 harris41 201: my $acts = $ENV{'form.acts'};
202: my @Acts = split(/b/,$acts);
1.1 harris41 203: my %ahash;
204: my %achash;
1.2 harris41 205: my $ac = 0;
1.5 harris41 206: foreach (@Acts) {
1.2 harris41 207: my ($state,$ref) = split(/a/);
208: $ahash{$ref} = $state;
209: $achash{$ref} = $ac;
1.1 harris41 210: $ac++;
1.5 harris41 211: }
212: foreach (sort {$achash{$a} <=> $achash{$b}} (keys %ahash)) {
1.2 harris41 213: my $key = $_;
1.1 harris41 214: if ($ahash{$key} eq '1') {
1.3 harris41 215: # my $keyz=join("<br />",keys %hash);
216: # print "<br />$key<br />$keyz".$hash{'pre_'.$key.'_link'}."<br />\n";
1.2 harris41 217: $hash{'store_'.$hash{'pre_'.$key.'_link'}} =
1.1 harris41 218: $hash{'pre_'.$key.'_title'};
1.2 harris41 219: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}} =
1.1 harris41 220: $hash{'storectr'}+0;
221: $hash{'storectr'}++;
222: }
223: if ($ahash{$key} eq '0') {
224: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
225: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
226: }
227: }
1.5 harris41 228: }
229: foreach (keys %hash) {
1.1 harris41 230: if ($_ =~ /^store_/) {
1.2 harris41 231: my $key = $_;
232: $key =~ s/^store_//;
233: $shash{$key} = $hash{'storectr_'.$key};
234: $thash{$key} = $hash{'store_'.$key};
1.1 harris41 235: }
1.5 harris41 236: }
1.1 harris41 237: if ($ENV{'form.oldval'}) {
1.2 harris41 238: my $newctr = 0;
1.1 harris41 239: my %chash;
1.5 harris41 240: foreach (sort {$shash{$a} <=> $shash{$b}} (keys %shash)) {
1.2 harris41 241: my $key = $_;
1.1 harris41 242: $newctr++;
1.2 harris41 243: $shash{$key} = $newctr;
244: $hash{'storectr_'.$key} = $newctr;
245: $chash{$newctr} = $key;
1.5 harris41 246: }
1.2 harris41 247: my $oldval = $ENV{'form.oldval'};
248: my $newval = $ENV{'form.newval'};
249: if ($oldval != $newval) {
1.3 harris41 250: # when newval==0, then push down and delete
251: if ($newval!=0) {
252: $shash{$chash{$oldval}} = $newval;
253: $hash{'storectr_'.$chash{$oldval}} = $newval;
254: }
255: else {
256: $shash{$chash{$oldval}} = $newctr;
257: $hash{'storectr_'.$chash{$oldval}} = $newctr;
258: }
259: if ($newval==0) { # push down
260: my $newval2=$newctr;
261: for my $idx ($oldval..($newval2-1)) {
262: $shash{$chash{$idx+1}} = $idx;
263: $hash{'storectr_'.$chash{$idx+1}} = $idx;
264: }
265: delete $shash{$chash{$oldval}};
266: delete $hash{'storectr_'.$chash{$oldval}};
267: delete $hash{'store_'.$chash{$oldval}};
268: }
269: elsif ($oldval < $newval) { # push down
1.1 harris41 270: for my $idx ($oldval..($newval-1)) {
1.2 harris41 271: $shash{$chash{$idx+1}} = $idx;
272: $hash{'storectr_'.$chash{$idx+1}} = $idx;
1.1 harris41 273: }
274: }
1.2 harris41 275: elsif ($oldval > $newval) { # push up
1.1 harris41 276: for my $idx (reverse($newval..($oldval-1))) {
1.2 harris41 277: $shash{$chash{$idx}} = $idx+1;
278: $hash{'storectr_'.$chash{$idx}} = $idx+1;
1.1 harris41 279: }
280: }
281: }
282: }
283: } else {
1.2 harris41 284: $r->print('Unable to tie hash to db file</body></html>');
1.1 harris41 285: return OK;
286: }
287: untie %hash;
1.2 harris41 288: my $ctr = 0;
289: my $clen = scalar(keys %shash);
1.14 matthew 290: $r->print(<<END);
291: <b><font color="#888888">Finalize order of resources</font></b>
292: <form method='post' action='/adm/groupsort' name='groupsort'
293: enctype='application/x-www-form-urlencoded'>
1.1 harris41 294: <input type="hidden" name="fnum" value="$clen" />
295: <input type="hidden" name="oldval" value="" />
296: <input type="hidden" name="newval" value="" />
1.14 matthew 297: <input type="hidden" name="mode" value="$ENV{'form.mode'}" />
1.3 harris41 298: END
1.11 www 299:
300: # --- Expand here if "GO BACK" button desired
1.3 harris41 301: if ($ENV{'form.catalogmode'} eq 'groupimport') {
302: $r->print(<<END);
1.2 harris41 303: <input type="button" name="alter" value="GO BACK"
304: onClick="window.location='/res/?catalogmode=groupimport'" />
1.3 harris41 305: END
306: }
307: if ($ENV{'form.catalogmode'} eq 'groupsearch') {
308: $r->print(<<END);
1.16 matthew 309: <input type="button" name="alter" value="New Search"
310: onClick="window.location='/adm/searchcat?catalogmode=groupsearch&cleargroupsort=1'" />
1.3 harris41 311: END
1.16 matthew 312: }
1.11 www 313: # ---
314:
1.3 harris41 315: $r->print(<<END);
1.2 harris41 316: <input type="button" name="alter" value="FINISH IMPORT"
317: onClick="finish_import()" />
1.1 harris41 318: <input type="button" name="alter" value="CANCEL" onClick="self.close()" />
319: END
320: $r->print("<table border='0'><tr><td bgcolor='#eeeeee'>");
321: $r->print("<table border=0><tr>\n");
1.2 harris41 322: $r->print("<td colspan='2' bgcolor='$titleclr'><b>Change order</b></td>".
323: "\n");
1.1 harris41 324: $r->print("<td colspan='2' bgcolor='$titleclr'><b>Title</b></td>\n");
325: $r->print("<td bgcolor='$titleclr'><b>Path</b></td></tr>\n");
1.5 harris41 326: foreach (sort {$shash{$a}<=>$shash{$b}} (keys %shash)) {
1.1 harris41 327: my $key=$_;
328: $ctr++;
329: my @file_ext = split(/\./,$key);
330: my $curfext = $file_ext[scalar(@file_ext)-1];
331: $r->print("<tr><td bgcolor='$fileclr'>");
332: $r->print(&movers($clen,$ctr));
333: $r->print(&hidden($ctr-1,$thash{$key},$key));
334: $r->print("</td><td bgcolor='$fileclr'>");
335: $r->print(&select_box($clen,$ctr));
336: $r->print("</td><td bgcolor='$fileclr'>");
337: $r->print("<img src='$iconpath$curfext.gif'>");
338: $r->print("</td><td bgcolor='$fileclr'>");
339: $r->print("$thash{$key}</td><td bgcolor='$fileclr'>\n");
340: $r->print("$key</td></tr>\n");
1.5 harris41 341: }
1.1 harris41 342: $r->print("</table></td></tr></table></form>");
343: $r->print(<<END);
344: </body>
345: </html>
346: END
347: return OK;
348: }
349:
1.2 harris41 350: # --------------------------------------- Hidden values (returns scalar string)
1.1 harris41 351: sub hidden {
1.2 harris41 352: my ($sel,$title,$filelink) = @_;
353: my $string = '<input type="hidden" name="title'.$sel.'" value="'.$title.
354: '" />';
355: $string .= '<input type="hidden" name="filelink'.$sel.'" value="'.
356: $filelink.'" />';
1.1 harris41 357: return $string;
358: }
359:
1.2 harris41 360: # --------------------------------------- Moving arrows (returns scalar string)
1.1 harris41 361: sub movers {
1.2 harris41 362: my ($total,$sel) = @_;
363: my $dsel = $sel-1;
364: my $usel = $sel+1;
365: $usel = 1 if $usel > $total;
366: $dsel = $total if $dsel < 1;
1.1 harris41 367: my $string;
1.2 harris41 368: $string = (<<END);
1.1 harris41 369: <table border='0' cellspacing='0' cellpadding='0'>
1.2 harris41 370: <tr><td><a href='javascript:move($sel,$dsel)'>
371: <img src="${iconpath}move_up.gif" alt='UP' border='0' /></a></td></tr>
372: <tr><td><a href='javascript:move($sel,$usel)'>
373: <img src="${iconpath}move_down.gif" alt='DOWN' border='0' /></a></td></tr>
1.1 harris41 374: </table>
375: END
376: return $string;
377: }
1.2 harris41 378:
379: # ------------------------------------------ Select box (returns scalar string)
1.1 harris41 380: sub select_box {
1.2 harris41 381: my ($total,$sel) = @_;
1.1 harris41 382: my $string;
1.2 harris41 383: $string = '<select name="alt'.$sel.'"';
384: $string .= " onChange='selectchange($sel)'>";
1.3 harris41 385: $string .= "<option name='o0' value='0'>remove</option>";
1.1 harris41 386: for my $cur (1..$total) {
1.2 harris41 387: $string .= "<option name='o$cur' value='$cur'";
388: if ($cur == $sel) {
389: $string .= "selected";
1.1 harris41 390: }
1.2 harris41 391: $string .= ">$cur</option>";
1.1 harris41 392: }
1.2 harris41 393: $string .= "</select>\n";
1.1 harris41 394: return $string;
395: }
396:
397: 1;
398:
399: __END__
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